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<title>Commands: GNOME Data Access 5 manual</title>
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<div class="sect1">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="id-1.8.4.4"></a>Commands</h2></div></div></div>
<p>
      The console tool allows the user to enter SQL commands (which can span several lines and must be terminated with
      a semi colon). The commands are executed synchronously and the results displayed right after execution, for example:
      </p>
<pre class="programlisting">
cnc1&gt; select *
    &gt; from customers order by name;
id | name            | last_update           | default_served_by | country | city
---+-----------------+-----------------------+-------------------+---------+-----
 2 | Ed Lamton       | 2008-08-12 00:00:00+0 |                 4 | SP      | MDR 
 9 | Greg Popoff     | 2007-12-25 00:00:00+0 |                 2 | SP      | MDR 
 3 | Lew Bonito      | 2008-08-13 00:00:00+0 |                 1 | FR      | TLS 
 4 | Mark Lawrencep  | 2007-12-25 00:00:00+0 |                   | SP      | MDR 
10 | Vladimir Zirkov | 2001-01-31 00:00:00+0 |                 4 |         |     
(5 rows)
cnc1&gt;
      </pre>
<p>
      The SQL dialect to be used must be understood by the database to which the connection is opened, so
      it is possible to use database's specific commands, for example with a PostgreSQL database:
      </p>
<pre class="programlisting">
cnc2&gt; show search_path;
search_path   
--------------
"$user",public
(1 row)
cnc2&gt;
      </pre>
<p>
    </p>
<p>
      There are also some internal commands which all start either with a dot or backslash and perform some
      actions such as changing the default output mode (to HTML for example) or getting meta information
      about the database structure. For example, use the <span class="command"><strong>.?</strong></span> to display a help message
      about all internal commands (with truncated output here):
      </p>
<pre class="programlisting">
gda&gt; .?
Formatting
  \H [HTML|XML|CSV|DEFAULT]
                     Set output format

General
  \?                 List all available commands
  \bind CNC_NAME CNC_NAME1 CNC_NAME2 [CNC_NAME ...]
                     Bind several connections together into the CNC_NAME virtual connection
      </pre>
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